Most pools are designed to retain water from the outside world, but sometimes there are problems that make the water inside the pool to explode outwards.
The most common issue causing this is an obstruction in the pool causing stagnation and increased friction between the water and the sides of the pool. The pool user then has 2 choices, remove the obstruction or suffer the consequences which usually means more pool time cleaning sessions.
But, what exactly happens inside a pool when this kind of issue occurs? Let’s take a quick look.
The Explosion Process
When the water inside a pool gets too hot, it begins to behave funny. It expands and that’s what causes all the problems. When the water is too hot, it becomes more dense than usual. The increased density causes the water to clump together which makes it more difficult for the pool’s filter to process the water. If the filter is not working at peak efficiency then you have more frequent pool cleanings and the explosions become more frequent as well.
To prevent situations like this, most pools are built with an alarm that alerts the pool owner or manager when the water temperature is rising. If the temperature is high enough for long enough, then the water is treated as contaminated and must be drained and cleaned.
The exact moment when this happens is usually silent. There’s no sudden rush of water coming out as there is when you turn a tap on. It usually creeps up on you slowly. Pool users will sometimes notice that the water in their pool isn’t as clear as usual, but that’s about it. Then, one morning they wake up and the entire pool is dry. There is no trace of water left inside.
The Sides Of The Pool
The sides of the pool are what keeps the water in. As the water heats up it begins to expand and that’s what causes all the issues. If the sides of the pool are made of smooth concrete with no groove or indentation, then the water will not have an area to expand into. The side will then crush the water molecules causing more damage.
To prevent this, many pools are built with a secondary water circulation system that allows for some level of air cooling. This is especially beneficial in summer months when the air inside the pool becomes very hot. Sometimes this is even supplied by a natural stream or lake nearby.
As the water recirculates around the sides, the air temperature is also lowered which reduces the discomfort that the hot air blast can cause. Most importantly, this reduces the chances of the pool collapsing because of overheating. Most swimming pools have a lifespan of about 15 to 20 years, depending on how often they’re cleaned.
Water In The Grains
Another issue that can cause explosions is the impurities that get trapped in the small water-grained material used to line the pool’s interior. These materials contain tiny air pockets that when combined with the hot water can create an explosion of sorts. This is why most pools are built with a water-repelling surface around the perimeter. This allows the water to drain off so when the filter is cleaned it can be returned to its pristine condition.
What Should You Do If You Suspect An Explosion Has Occurred?
If you suspect that an explosion has occurred, then the first thing you should do is stop what you are doing and assess the situation. Take all the time you need and try to figure out what has happened. As soon as the cause of the explosion is identified, then action can be taken to fix it. If this is not possible, then it’s time to start worrying about alternative options.
Some of the issues discussed above can be easily identified by doing a simple test. Turn off the water in the pool and wait a few minutes. If there is no audible gurgling or bubbling sounds coming from the main pool area, then there is no blockage and no need to worry about cleaning as it can be assumed that the filter is working properly.
If, on the other hand, you hear loud gurgling or bubbling sounds or smell an unpleasant odor then you can be sure that there is an issue with the water and it needs to be cleaned properly before you once again use it.
Once you’ve stopped the explosions in your pool, it’s time to clean it. If this is cleaned on a regular basis then it won’t be an issue. But, if you haven’t cleaned it recently then it could become problematic again. If you suspect that an explosion will occur then do everything in your power to prevent it. Cleaning the pool is an easy enough process, but to ensure the water stays clean it must be done on a regular basis. If this is impossible then you must accept the fact that the pool will eventually become contaminated and it needs to be replaced.